WO2006057352A1

WO2006057352A1 - Double glass and method for producing the same

Info

Publication number: WO2006057352A1
Application number: PCT/JP2005/021716
Authority: WO
Inventors: Takayoshi Saito; Teruo Matsuyama
Original assignee: Asahi Glass Company, Limited
Priority date: 2004-11-26
Filing date: 2005-11-25
Publication date: 2006-06-01
Also published as: CA2590390A1; CN101065336A; JPWO2006057352A1; US20070245646A1

Abstract

A double glass in which the interval between the glass plates can be reliably held without sacrifice of design. In the double glass (10), a member (20) for holding the interval between two glass plates is fitted in an interstice (18) with a recess-like cross-section defined by the inner sides of the circumferential edge of the opposite glass plates (12, 12) and by the outer circumferential surface of a resin spacer (16). An outer side face (20A) of the interval holding member (20) is placed in flush with the circumferential edges (12A, 12A) of the two glass plates (12, 12) or placed slightly on the hollow layer side (14). The interval holding member (20) consists of a hard portion (22) with a rectangular cross-section inserted in the interstice between the glass plates (12, 12) and of soft portions (24) softer than the hard portion, the soft portions (24) being at those positions of the hard portion (22) which face the glass plates (12, 12) and made to be in intimate contact with the inner surfaces of the circumferential edges of the glass plates (12). The soft portions (24) are constructed to facilitate insertion of the hard portion (22) into the interstice (18) and to be less likely to come out of position.

Description

Specification

Multi-layer glass and method for producing the same

Technical field

TECHNICAL FIELD [0001] The present invention relates to a double-glazed glass, and more particularly to a double-glazed glass produced using a resinous spacer having self-adhesiveness and a method for producing the same.

Background art

[0002] A double-layer glass is generally known in which two glass plates are opposed to each other via a spacer in which a desiccant is sealed, and a hollow layer is formed between the two glass plates. . Double-layer glass is mainly used for construction and vehicles, and by placing a primary sealing material, such as a butyl sealant, between an aluminum metal spacer and two glass plates. A secondary layer that seals the hollow layer from the outside air and has an elastic sealing material or the like in a concave gap formed by the inner surface of the peripheral edge of the two glass plates facing each other and the outer peripheral surface of the spacer. It is constructed by placing a sealing material.

[0003] The manufacturing process of double-glazed glass using metal spacers, however, is a process of cutting the metal spacers according to the size of the glass plate, a process of bending, and bonding to the glass plate Since there are many manufacturing processes such as the processes to be performed, it was necessary to put in large equipment at the initial stage, and it was difficult to manufacture the double-glazed glass with simple equipment.

[0004] Thus, as a multi-layer glass that can be manufactured with simple equipment, a multi-layer glass using a resin spacer instead of a metal spacer has been proposed (for example, Patent Document 1). .脂 Oil spacers are easier to cut, bend and bond than metal spacers, and have better thermal insulation around the multilayer glass than metal spacers. It is also attracting attention because of its advantages.

[0005] By the way, the double-glazed glass using the spacer made of resin has the problem that the resin spacer made of resin does not have the rigidity like metal, and is easily deformed. Multi-layer glass is solved.

As shown in FIG. 7, the double-glazed glass of Patent Document 2 is a spacer having a cross-section of a clog-tooth shape from the outer peripheral surface side of a thermoplastic resin spacer 2 for bonding two glass plates 1 and 1 together. One piece 3 protrusion 4, 4 Is embedded in a thermoplastic resin spacer 12 heated and softened. As a result, the distance between the two glass plates 1 and 1 is held by the projections 4 and 4, and the spacer 3 and the two glass plates 1 and 1 are cured by the curing of the thermoplastic resin spacer 2. Are prevented from deforming the double-glazed glass. Reference numeral 5 denotes a hollow layer formed between the two glass plates 1 and 1.

Patent Document 1: Japanese Patent Laid-Open No. 6-123191

Patent Document 2: Japanese Patent Laid-Open No. 11-130475

Disclosure of the invention

Problems to be solved by the invention

[0007] By the way, a general multi-layer glass is attached to a sash (not shown) through the attachment member 6 with its peripheral edge inserted into the concave groove 7 of the attachment member 6 shown in FIG.

[0008] The depth L of the concave groove 7 of the attachment member 6 is the position of the surface 2A on the hollow layer side of the resin spacer 2 where the amount of placement is regulated according to the size of the glass plate, etc. Designed to meet the requirements. This is because the attachment member 6 functioning as a decorative plate prevents the normally black resin spacer 2 from appearing from the viewpoint of design. If the depth L is further increased so that the resin spacer 2 is completely invisible, the attachment member 6 becomes too large, and the area of the glass portion is reduced, resulting in poor design as a window. Because it becomes. FIG. 8 shows an example of a multi-layer glass in which only the spacer spacer 2 is cast without providing the spacer piece 3 (see FIG. 7).

[0009] From the viewpoint of such design, the multilayer glass disclosed in Patent Document 2 shows the surface of the spacer layer 2 on the hollow layer side by the thickness t of the spacer piece 3 as shown in FIG. 2A protrudes to the inside of the attachment member 6 so that the design is deteriorated.To prevent this, if the depth L of the concave groove 7 is increased by t, the attachment member 6 becomes too large and the area of the glass portion is reduced. Since it becomes small, there was a drawback that the design as a window deteriorated.

[0010] Furthermore, the double-glazed glass of Patent Document 2 has a structure in which the protrusions 4 and 4 of the spacer piece 3 are simply embedded in the thermoplastic grease spacer 1, so that the resin spacer 2 is While drying and solidifying In some cases, the spacer piece 3 was easily detached.

[0011] The present invention has been made in view of such circumstances, and is provided with an interval holding member for maintaining the interval between the hollow layers of the double-glazed glass, in particular, a resinous spacer having self-adhesiveness. An object of the present invention is to provide a double-glazed glass capable of reliably maintaining the distance between the glass plates without impairing the design of the double-glazed glass when used, and a method for producing the same. Means for solving the problem

[0012] In order to achieve the above object, the present invention provides a resin spacer in the vicinity of the peripheral edges of at least two glass plates facing each other, and separates the glass plates at a predetermined interval. In a multi-layer glass in which a hollow layer is formed between the glass plates, the cross section defined by the inner surface of the peripheral edge of the two glass plates facing each other and the outer peripheral surface of the resin spacer 1 An interval holding member that holds an interval between the two glasses is inserted into the concave gap, and the interval holding member is disposed flush with the peripheral edge of the two glass plates or on the hollow layer side. Provided is a double-glazed glass characterized by

[0013] According to the above-mentioned double-glazed glass, a gap is maintained in a gap having a concave cross section defined by the inner surface of the peripheral edge of the two glass plates facing each other and the outer peripheral surface of the resin spacer. In addition to fitting the members, the spacing member is arranged flush with or on the hollow layer side with respect to the peripheral edges of the two glass plates. As a result, the resin spacer is not protruded from the attachment member, so that the design is not impaired. Further, since the interval holding member is structured to fit into the gap having a concave cross section, the interval between the glass plates can be reliably held. The spacing member need not be provided over the entire circumference of the multi-layer glass, for example, is configured in a block shape several centimeters long, and these are arranged at a predetermined interval or at a predetermined position so as to hold the interval between the glass plates. Please do it.

[0014] The present invention provides the multi-layer glass, wherein the spacing member is provided in a hard portion inserted into a gap between the glass plates, and is provided in the hard portion and is in close contact with the glass surface of the glass plate. It consists of the soft part softer than the said hard part.

[0015] Further, in the present invention, the soft part of the spacing member is (1) a fin-like member inclined at an acute angle with respect to the insertion direction of the hard part, (2) the glass surface of the glass plate A dome-shaped member having a vertex in contact with the dome-shaped member, and between the dome-shaped member and the hard portion, Alternatively, a space is formed inside the dome-shaped member or a wave-shaped member.

[0016] The soft portion has a structure in which when the hard portion is inserted into the gap, the hard portion is easily inserted, and resistance is applied in the direction of removal after the insertion, and the soft portion having a fin shape is provided. In the spacing member provided at the location facing the glass plate of the hard part that becomes the core, the fins are inclined at an acute angle with respect to the insertion direction of the hard part and are easy to insert. It has a structure that does not come off. Further, in the spacing member in which the soft portion is a dome-shaped member, the dome-shaped soft portion whose apex is the location where the hard portion serving as the core and the glass plate face each other is attached, and the formed hollow portion is By being crushed, it can be easily inserted between glass plates, and after insertion, the soft part and the glass plate are in surface contact with each other so that a large frictional resistance is generated and the structure is difficult to come off. Furthermore, a structure that is not easily detached due to the frictional resistance of this wave-like member can be obtained even with a spacing member whose soft portion is a wave-like member.

[0017] The present invention provides the multilayer glass, wherein the spacing member is inserted between the glass plates and connects the hard part divided into two and the hard part divided into two. The hard part is softer than the part and is composed of a soft part, and the hard part divided into two is brought into contact with the glass surface of the glass plate through a resistance member.

[0018] In this way, the hard part is divided into two parts, these are connected by the soft part, and the hard part divided into two parts is brought into contact with the glass surface of the glass plate through the resistance member, thereby dividing the hard part into two parts. Is pushed to the elastic force of the soft part and pushed in the direction approaching each other and inserted in the gap in this state, the restoring force of the soft part acts on the hard part and presses the hard part against the glass surface. At this time, since the hard portion is pressed against the glass surface via the resistance member, the gap between the glass plates can be reliably maintained without being removed from the gap.

[0019] Further, according to the present invention, in the above-described double-glazed glass, a protrusion that is inserted into the resin spacer is provided on the surface of the spacing member on the side of the resin spacer. It is characterized by that.

[0020] By forming the protrusions on the spacing member in this way and inserting the protrusions into the spacer made of the resin when the spacing member is inserted, the separation of the spacing member can be prevented.

[0021] In the multilayer glass of the present invention, the spacing member is a hard core that becomes a core as described above. The hard part and the soft part are provided at the place where the hard part faces the glass plate, and the hard part and the soft part may be integrated or separate. The material can be exemplified by polyvinyl chloride vinyl.

[0022] Further, the present invention includes a step of arranging a resin spacer formed in a string shape along the vicinity of the peripheral edge of the first glass plate, and the resin spacer. A step of superimposing a second glass plate on the first glass plate on which a substrate is disposed through the resin spacer, and pressurizing or heating and pressurizing the resin spacer. And bonding the first glass plate and the second glass plate through a resin spacer, and the outer periphery of the resin spacer opposite to the hollow layer side. And a step of fitting and arranging a spacing member for holding the spacing between the glass plates on the same side as the peripheral edge of the glass plate or on the hollow layer side. provide.

[0023] A feature of this manufacturing method is that a resin-made spacer made of string is arranged along the vicinity of the peripheral edge of the glass plate in a room temperature environment, and is pressurized, heated, and heated. The object is to adhere the glass plate by pressurization, and to arrange an interval holding member for holding the interval between the glass plates on the outer peripheral portion opposite to the hollow layer side of the resin spacer. That is, in the case of double-glazed glass using an aluminum spacer having a hollow structure that can contain a desiccant, there is an insertion process for inserting the desiccant into the hollow part of the aluminum spacer. Assembling or bending force of aluminum spacer, placing step on glass plate, pressurizing step after bonding two or more glass plates, and outer space of aluminum spacer This requires many processes such as a sealant filling process and a curing process until the sealant is cured, and a pressurizing machine and a facility for filling the sealant are powerful. In addition, in the case of multi-layer glass that is arranged on a glass plate while extruding a resin spacer with an extrusion molding machine, an extrusion molding machine with a resin spacer or a resin spacer is arranged. Therefore, it is necessary to provide equipment to maintain the distance between the two glass plates while the resin spacer is installed. On the other hand, the method for producing a double-glazed glass of the present invention is a method of arranging a glass spacer wound in a reel shape in the vicinity of the peripheral edge of the glass plate and overlaying the glass plates. There are few steps just by pressurization, or heating and pressurization, and a large-sized facility is not required, so that a double-layer glass can be easily produced. Also In order to improve the adhesion between the resin spacer and the glass plate, a silane coupling agent is included in the vicinity of the peripheral edge of the glass plate before the resin spacer is installed. Apply the primer.

The invention's effect

[0024] According to the double-glazed glass of the present invention, the gap between the inner surfaces of the peripheral edge portions of the two glass plates facing each other and the outer peripheral surface of the resin spacer is recessed in the cross section. Since the spacing member is fitted and the spacing member is disposed flush with the peripheral edge of the two glass plates or on the hollow layer side, the spacing between the glass plates does not impair the design. Can be securely held.

Brief Description of Drawings

[0025] FIG. 1 is a cross-sectional view of a principal part showing a double glazing of a first embodiment.

FIG. 2 is a cross-sectional view of the main part showing the double-glazed glass of the second embodiment.

FIG. 3 is a cross-sectional view of the main part showing a multilayer glass of a third embodiment.

FIG. 4 is a cross-sectional view of a principal part showing a double glazing according to a fourth embodiment.

FIG. 5 is a cross-sectional view of a main part showing a double-glazed glass according to a fifth embodiment.

FIG. 6 is a block diagram showing a process for producing a multilayer glass according to the present invention.

[Fig.7] Cross-sectional view of the main part of a conventional double-glazed glass using a resin spacer

FIG. 8 is a cross-sectional view showing an attachment member mounted on a double-glazed glass.

FIG. 9 is a cross-sectional view of the multilayer glass shown in FIG. 7 with the attachment member shown in FIG. 8 attached.

[0026] 1 ... Glass plate, 2 ... Thermoplastic grease spacer, 3 ... Spacer piece, 4 ... Projection, 5 ... Hollow layer, 6 ... Attachment member, 7 ... Concave groove, 10 ... ······································· 12 GLASS PLATE, 12A ... CIRCUIT EDGE, 14 ... HOLLOW LAYER, 16 ... SPACERS ··· Hard portion, 24 ··· Soft portion, 30 ··· Space retaining member, 32 ··· Hard portion, 34 ··· Soft portion, 36 ··· Space, 40 ··· Space retaining member, ··· Hard part, 44 ··· Soft part, 50 ··· Space holding member, 52 ··· Hard part, 54 ··· Soft part, 56 ··· Film (resistance member), 60 ··· Space holding member, 62 · ··· Hard part, 64 ··· Projection, 100 ··· Cleaning step, 110 ... Primary application step, 120 ... Drying step, 130 ... Paste step, 140 ··· Glass plate bonding step, 150 · .... Heat roller press Process, 160 ... Spacing member mounting process

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, preferred embodiments of the multilayer glass according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows a cross-sectional view of a main part of the multilayer glass 10 of the first embodiment. In this multilayer glass 10, two glass plates 12, 12 are separated via a resin spacer 16 disposed to form a hollow layer 14 therebetween. This resin spacer 16 is a self-adhesive elastomeric spacer kneaded with a desiccant, and is selected as a matrix component with the strength of polyisobutylene, butyl rubber, and modified butyl rubber. The molecular weight index (MWI) force of the butyl elastomer component represented by the following formula (1) is not less than 00000, and the force also includes the elastomer spacer. Are preferably free of crystalline polyolefin.

[Number 1]

M W I = ∑ (M w (i) (Kth 卜 of the butyl-th elastomeric component of the total butyl-based elastomer 1/100 0)) (1)

(In formula (1), i is an integer greater than or equal to 1 representing the number of types of petroleum elastomer components contained in the elastomeric spacer 1 as the matrix component, and Mw (i) is the i th Represents the viscosity average molecular weight of one component of a butyral elastomer.)

[0029] The elastomer-based spacer contains less than 2% by mass of crystalline polyolefin. Further, the elastomer-based spacer includes at least one selected from the group power of carbon black, coloring pigment, and inorganic filler, and a desiccant as one filler component, and the filler component is A total of 40 to 75% by mass is contained in the above-mentioned elastomer system spacer. Further, the elastomer type spacer is 150 according to JIS K7210 (1999), using a high flow type flow tester. C, 55kgf (539 N) load, die length (L) Z die diameter (D) = 5mmZ lmm melt volume rate (MVR) of the material of the spacer system spacer measured using the following conditions: ) Is less than 0.1 cm ³ / sec. In this way, by specifying the material of the resin spacer 16 The creep property of the spacer material is lowered, and the multilayer glass 10 having excellent shape retention can be obtained. In addition, it is possible to obtain a multi-layer glass 10 that is excellent in adhesion with the glass plates 12 and 12 and has excellent durability in which the moisture permeability of the spacer material is low.

[0030] In the double-layer glass of the present invention, the height of the elastomeric spacer (the vertical direction of the resin spacer 16 in Fig. 1) is determined based on the ease of winding the linole after extrusion. Corner at the time of sticking Considering the ease of bending of some parts, it is preferable to make it 6-7mm. Assuming that the spacer height of a general multilayer glass is 10 mm, the height of the spacing member 20 is preferably 2 to 3 mm. By doing so, the total height of the resin spacer 16 and the spacing member 20 can be set to the same height as a general multilayer glass spacer. In other words, on the entire circumference or part of the two layers of double-glazed glass, the above-mentioned elastomer-type spacer (made of resin) of 2 to 3 mm in the height direction (up and down direction in FIG. 6) from the glass edge. There is a part where the spacer 16) is not provided, and the spacing member is installed in this part so as not to protrude from the end, and the above-mentioned elastomer system spacer is composed of two sheets of multilayer glass. It is characterized by being installed within 10mm in the glass edge force height direction between the glass.

The multi-layer glass 10 is formed in a gap 18 having a concave cross section defined by the inner surfaces of the peripheral edges of the two opposing glass plates 12 and 12 and the outer peripheral surface of the resin spacer 16. An interval holding member 20 for holding an interval between the two glasses 12 and 12 is inserted. The spacing member 20 has an outer side surface 20A that is flush with the circumferential edges 12A and 12A of the two glass plates 12 and 12, or is disposed slightly on the hollow layer 14 side.

Thus, according to the multilayer glass 10 of the first embodiment, the resin spacer 16 does not protrude from the attachment member 6 (see FIG. 8 and FIG. 9). There is no loss. In addition, since the spacing member 20 is structured to fit into the gap 18 having a concave cross section, the spacer piece cannot be easily detached as in Patent Document 2 to maintain the spacing between the glass plates. Thus, the distance between the glass plates 12 and 12 can be reliably maintained. The spacing member 20 does not need to be provided over the entire circumference of the multi-layer glass 10, for example, is configured in a block shape several centimeters long, and these are arranged at predetermined intervals or at predetermined positions so that the glass plates 12, 12 Even if you keep the interval ヽ.

[0033] The spacing member 20 is a rigid portion having a rectangular cross section inserted into the gap between the glass plates 12, 12. 22 and a soft portion 24 which is provided at a location facing the glass plates 12 and 12 of the hard portion 22 and is in close contact with the inner surface of the peripheral portion of the glass plate 12 and softer than the hard portion 22. The term “hard” or “soft” as used herein means, for example, a value represented by durometer as defined in JIS K6253 (1993). Hard is preferably 90 or more, and soft is preferably 60 to 80.

As shown in FIG. 1, the soft portion 24 is a fin-like member that is inclined at an acute angle with respect to the insertion direction of the hard portion 22 with respect to the gap 18, and two soft portions 24 are formed on one side of the hard portion 22. Yes.

By forming the soft portion 24 in this manner, when the hard portion 22 is inserted into the gap 18, it is difficult to receive the resistance of the soft portion 24, so that the insertion becomes easy. Further, since the fin-like soft part 24 becomes a so-called barb after insertion, the hard part 22 does not come out of the gap 18.

Therefore, by using the gap holding member 20, the gap between the glass plates 12 and 12 can be reliably held. The hard portion 22 and the soft portion 24 are made of polyvinyl chloride vinyl and may be integrated or separated.

In the spacing member 30 of the multilayer glass 10 according to the second embodiment shown in FIG. 2, the hard part 32 serving as the core has the same structure as the hard part 22 shown in FIG. The part 34 is a dome-shaped member whose apex is a portion that contacts the glass surface of the glass plates 12 and 12. A space 36 is formed between the soft part 34 and the hard part 32, and the soft part 34 is given elasticity. The space 36 may be provided inside the dome-shaped member.

[0036] According to the spacing member 30 configured as described above, the hard portion 32 can be easily inserted between the glass plates 12 and 12 by pushing the hard portion 32 into the gap 18, and after the insertion, the air is generated by the air pressure in the space 36. Since the soft part 34 and the glass plates 12 and 12 are in surface contact with each other and a large frictional resistance is generated, they do not come off. As with the spacing member 20, this spacing member 30 also has an outer side surface (actually the outer surface of the hard portion 32) 30A with respect to the peripheral edges 12A, 12A of the two glass plates 12, 12. It is arranged on the same level or slightly on the hollow layer 14 side.

[0037] In the spacing member 40 of the multilayer glass 10 of the third embodiment shown in FIG. 3, the hard part 42 serving as the core has the same structure as the hard part 22 shown in FIG. The portion 44 is formed in a wave shape. If the hard part 42 is pushed into the gap 18 by making the soft part 44 a corrugated member, The soft part 44 is elastically deformed by being pressed by the glass surfaces of the glass plates 12 and 12, and the hard part 42 is allowed to be pushed. After the insertion, the soft portion 44 is brought into close contact with the glass plates 12 and 12 due to the restoring force of the soft portion 44, and a large frictional resistance is generated. As with the spacing member 20, this spacing member 40 also has an outer surface (actually the outer surface of the hard portion 42) 40A with respect to the peripheral edges 12A, 12A of the two glass plates 12, 12. Are arranged on the same level or slightly on the hollow layer 14 side.

[0038] In the spacing member 50 of the multilayer glass 10 of the fourth embodiment shown in FIG. 4, the hard portions 52, 52 serving as the core are divided into two parts. Further, the soft portion 54 is bonded to the opposing surfaces of the hard portions 52 and 52 so as to connect the hard portions 52 and 52 divided into two parts. Further, a large frictional force is generated between the hard portions 52 and 52 on the outer side surfaces of the hard plates 52 and 52 that are in contact with the glass plates 12 and 12, for example, a film having a satin-like surface (resistance member). 56 and 56 are affixed.

According to the spacing member 50, the two hard parts 52, 52 are piled on the elastic force of the soft part 54 and pressed in directions approaching each other, and inserted in the gap 18 in this state. Then, the restoring force of the soft part 54 acts on the hard parts 52 and 52, and the side surfaces of the hard parts 52 and 52 are pressed against the glass plates 12 and 12. At this time, the side surfaces of the hard portions 52, 52 are pressed against the glass plates 12, 12 via the films 56, 56, that is, a large frictional force is applied in the pulling direction, so that they do not come off from the gap 18. . Therefore, the distance between the glass plates 12 and 12 can be reliably maintained. The spacing member 50 also has an outer surface (actually the outer surface of the hard portions 52, 52) 50A that is flush with the circumferential edges 12A, 12A of the two glass plates 12, 12, or a slight amount. Arranged on the hollow layer 14 side. Further, instead of the films 56 and 56, the fin-like soft part 24 in FIG. 1, the dome-like soft part 34 in FIG. 2, and the wavy soft part 44 in FIG. 3 may be applied.

[0040] The spacing member 60 of the multilayer glass 10 according to the fifth embodiment shown in FIG. 5 has a sharpened shape that is inserted into the spacer 16 made of resin on the inner side surface of the hard portion 62 serving as the core. A protrusion 64 is provided. In addition, a forceps (not shown) is formed at the tip of the protrusion 64 to prevent the protrusion 64 inserted into the resin spacer 16 from coming off. The spacing member 60 can also be easily inserted into the gap 18, and the protrusion 64 can be inserted into the resin spacer 16 to reliably prevent the spacing member 60 from coming off. In addition, this The protrusions 64 may be provided on the hard parts 22, 32, 42, 52 shown in FIGS. Further, the fin-shaped soft part 24 in FIG. 1, the dome-shaped soft part 34 in FIG. 2, and the wavy soft part 44 in FIG. 3 may be applied to the side surface of the hard part 62.

[0041] FIG. 6 shows respective steps showing a preferred method for producing the multilayer glass 10. The two glass plates 12 and 12 constituting the multi-layer glass 10 are first cleaned by the cleaning process 100 and then the resin spacer 16 is pasted by the primary coating process 110. The primary is applied to the peripheral edges of the glass plates 12 and 12. Next, after the glass plates 12 and 12 are dried in the drying step 120, the glass plates 12 and 12 are transferred to the affixing step 130 of the resin spacer 16.

[0042] The adhering step 130 is performed by pulling out the string-like resin spacer 16 wound in a reel shape in a room temperature (room temperature) environment while the peripheral edge of one (first) glass plate 12 is pulled out. It has a process of arranging along the vicinity. Thereafter, one glass plate 12 on which the resin spacer 16 is disposed is bonded to the other (second) glass plate 12 and the resin spacer 16 by two glass plate bonding steps 140. Are overlaid and pasted together. Then, in the heat roller brazing process 150, the resin spacer 16 is heated by the heater, and the two glass plates 12 and 12 that are overlaid are pressed by the roller, whereby the two glass plates 12 are heated. , 12 are bonded via a resin spacer 16. Depending on the material of the spacer made of resin, it is possible to bond the two glass plates 12 and 12 by simply pressing the two glass plates 12 and 12 with a roller without heating them. .

Thereafter, the two bonded glass plates 12 and 12 are transferred to the spacing member attaching step 160. By this spacing member attaching step 160, for example, the spacing member 20 of FIG. 1 is placed on the outer peripheral portion of the resin spacer 16 opposite to the hollow layer 14 side, and the peripheral edges 12A of the glass plates 12, 12 are used. , 12A and flush with the hollow layer 14 side. Thereby, the multilayer glass 10 is manufactured.

[0044] A feature of the manufacturing method shown in FIG. 6 is that the resin spacer 16 formed in a string shape is arranged along the vicinity of the peripheral edge of the glass plate 12 in a room temperature environment. It is in. In other words, unlike the manufacturing method in which the resin spacer 16 is placed on the glass plate 12 while being extruded by an extruder, it is manufactured using the solid resin spacer 16. It is characterized by.

[0045] As a result, in a manufacturing plant where it is only necessary to deliver the resin spacer 16 wound in the form of a reel to the manufacturing plant, there is no need for a large pressurizing machine such as a sealant filling machine or an extrusion molding machine. Therefore, the multilayer glass 10 can be manufactured with simple equipment.

[0046] In the embodiment, the multilayer glass composed of two glass plates 12 and 12 has been described. However, the number of glass plates 12 is not limited to two, but three or more glass plates. You can use the same spacing member for multi-layered glass.

Industrial applicability

[0047] The multilayer glass according to the present invention maintains a gap in the concave portion ₇ defined by the inner surface of the peripheral portion of the two glass plates facing each other and the outer peripheral surface of the resin spacer 1. Since the members are fitted and arranged so as not to protrude from the peripheral edges of the two glass plates, it is possible to securely maintain the distance between the glass plates without impairing the design. Applicable as glass. It should be noted that the entire contents of the specification, claims, drawings and abstract of Japanese Patent Application No. 2004-341875 filed on November 26, 2004 are cited here as disclosure of the specification of the present invention. Incorporate.

Claims

The scope of the claims

[1] Spacers made of resin are arranged near the peripheral edges of at least two glass plates facing each other, and a hollow layer is formed between the glass plates by separating the glass plates from each other at a predetermined interval. In the laminated glass,

An interval holding member that holds an interval between the two glasses in a gap having a concave cross section defined by the inner surface of the peripheral edge of the two glass plates facing each other and the outer peripheral surface of the resin spacer. Is inserted, and the spacing member is disposed flush with the peripheral edge of the two glass plates or on the inner layer side.

[2] The spacing member is a hard part inserted into the gap between the glass plates, and is provided in the hard part and is in close contact with the glass surface of the glass plate and is softer than the hard part. The multilayer glass according to claim 1, characterized by comprising:

[3] The multilayer glass according to [2], wherein the soft part is a fin-like member inclined at an acute angle with respect to the insertion direction of the hard part.

[4] The soft portion is a dome-shaped member whose apex is a portion in contact with the glass surface of the glass plate, and is a space between the dome-shaped member and the hard portion or inside the dome-shaped member. The multilayer glass according to claim 2, wherein: is formed.

[5] The multilayer glass according to [2], wherein the soft part is a corrugated member.

[6] The spacing member is composed of a hard part that is inserted between the glass plates and divided into two parts, and a soft part that connects the two hard parts and is softer than the hard part. 2. The multilayer glass according to claim 1, wherein a hard part divided into two is brought into contact with the glass surface of the glass plate via a resistance member.

[7] The surface of the spacing member on the resin spacer side is provided with a protrusion to be inserted into the resin spacer. The multilayer glass of any one of Claims 1-5.

[8] A step of disposing a resin-made spacer made of string along the vicinity of the peripheral edge of the first glass plate;

A step of superimposing the second glass plate on the first glass plate on which the resin spacer 1 is disposed via the resin spacer; Adhering the first glass plate and the second glass plate via a resin spacer by pressurizing or heating and pressurizing the resin spacer;

An interval holding member that holds an interval between the glass plates on the outer peripheral portion opposite to the hollow layer side of the resin spacer 1 is flush with the peripheral edge of the glass plate or in the middle. A step of inserting and arranging on the air layer side;

A method for producing a multilayer glass, comprising: